void btnCancel_Click(object sender, RoutedEventArgs e) { try { LyncHelper.CancelLyncSigned(new Action(() => { //隐藏登陆提示 this.IsLogining = System.Windows.Visibility.Hidden; //取消登陆 this.Visibility = System.Windows.Visibility.Hidden; })); Application.Current.Shutdown(0); } catch (Exception ex) { LogManage.WriteLog(this.GetType(), ex); } }